100221210212 has 6 divisors (see below), whose sum is σ = 175387117878. Its totient is φ = 50110605104.

The previous prime is 100221210197. The next prime is 100221210227. The reversal of 100221210212 is 212012122001.

It is an interprime number because it is at equal distance from previous prime (100221210197) and next prime (100221210227).

It can be written as a sum of positive squares in only one way, i.e., 89631976996 + 10589233216 = 299386^2 + 102904^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527651273 + ... + 12527651280.

It is an arithmetic number, because the mean of its divisors is an integer number (29231186313).

Almost surely, 2^100221210212 is an apocalyptic number.

It is an amenable number.

100221210212 is a deficient number, since it is larger than the sum of its proper divisors (75165907666).

100221210212 is a wasteful number, since it uses less digits than its factorization.

100221210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25055302557 (or 25055302555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100221210212 its reverse (212012122001), we get a palindrome (312233332213).

The spelling of 100221210212 in words is "one hundred billion, two hundred twenty-one million, two hundred ten thousand, two hundred twelve".